An artist’s interpretation Quetzalcoatlus lawsoni, a new species with an 18-20 foot wingspan, soaring above the water. Credit: John Conway.
Left: Douglas Lawson with Quetzalcoatlus wing bones that he discovered in Big Bend National Park. He is holding the humerus bone. Right: Wann Langston with a model of a Quetzalcoatlus wing from the smaller species. Credit: The University of Texas at Austin/ Jackson School of Geosciences